RS485 Modbus RTU digital input modules for dry contact switch signals and equipment status acquisition.
Tax-inclusive reference prices in CNY. Negotiable; the quotation reflects the selected configuration, quantity and delivery requirements. All products carry a 3-year warranty.
For a complete system, include the power supply, sensors, communication access and platform deployment in your enquiry.
RS485 Modbus RTU digital input modules for dry contact switch signals and equipment status acquisition.
The page is written for engineering companies, system integrators, device manufacturers and B2B project procurement teams.
Input modules collect contacts and equipment states; they do not drive loads. Select by input count and cabinet layout, and add an output controller when equipment switching is required.
Select by channels and operating modes when Ethernet control and input status are required together. Compare dedicated input modules for many contacts and Q-series controllers for other output scales.
View product detailsSelect a Q-series configuration by circuit count, load type and site network. Compare 4G models for cellular access and the high-power range for higher-load circuit control.
View product detailsAcquire contacts or buttons and let control logic operate a separate status light, keeping acquisition distinct from output execution.
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